How to change transparency of CFrames?

I can't change the transparency of my CFrames, I have seen other people do it so sorry for my amateur attempt at this as I'm really struggling

local Baseplate = game.Workspace.Baseplate
while true do
	Baseplate.CFrame.Transparency = 0.1
	wait(0.1)
	Baseplate.CFrame.Transparency = 0.2
	wait(0.1)
	Baseplate.CFrame.Transparency = 0.3
	wait(0.1)
	Baseplate.CFrame.Transparency = 0.4
	wait(0.1)
	Baseplate.CFrame.Transparency = 0.5
	wait(0.1)
	Baseplate.CFrame.Transparency = 0.6
	wait(0.1)
	Baseplate.CFrame.Transparency = 0.7
	wait(0.1)
	Baseplate.CFrame.Transparency = 0.8
	wait(0.1)
	Baseplate.CFrame.Transparency = 0.9
	wait(0.1)
	Baseplate.CFrame.Transparency = 1
	wait(0.1)
	Baseplate.CFrame.Transparency = 0.9
	wait(0.1)
	Baseplate.CFrame.Transparency = 0.8
	wait(0.1)
	Baseplate.CFrame.Transparency = 0.7
	wait(0.1)
	Baseplate.CFrame.Transparency = 0.6
	wait(0.1)
	Baseplate.CFrame.Transparency = 0.5
	wait(0.1)
	Baseplate.CFrame.Transparency = 0.4
	wait(0.1)
	Baseplate.CFrame.Transparency = 0.3
	wait(0.1)
	Baseplate.CFrame.Transparency = 0.2
	wait(0.1)
	Baseplate.CFrame.Transparency = 0.1
	wait(0.1)
	Baseplate.CFrame.Transparency = 0
end

CFrame doesn't have a transparency. Bricks do. If you want to change the transparency of a brick, you can use this:

local part = workspace.Baseplate
local tweenLength  = 1 --how long the 'animation' will take
local info = TweenInfo.new(tweenLength) 
while game["Run Service"].Heartbeat:Wait() do
	game.TweenService:Create(part, info, {Transparency = 1}):Play()
	wait(tweenLength)
	game.TweenService:Create(part, info, {Transparency = 0}):Play()
	wait(tweenLength)
end

CFrame doesn't have a Transparency property. If you wanted to change the transparency of the baseplate you could just make a simple for loop.

local Baseplate = game.Workspace.Baseplate

--// Fade out loop
for i = 1, 10 do
	Baseplate.Transparency = i/10
	wait()
end

Fact is: You cannot change a CFrame value.

TheCFrameproperty does not have a Transparency component, the proper way would be to create a for loop, and change the BRICK's Transparency property, which is valid in this case.

For example.

for i = 0,1,0.01 do -- The first number is the "start", second is "end", and third is the increment, or how much you're increasing/decreasing, in this case, increasing.
workspace.Baseplate.Transparency = i
wait(0.01)
end

This should gradually increase your baseplate's Transparency property.