Can i duplicate my BasePlate?

Assuming your basePlates name is "BasePlate": You would need to use the :Clone() function, and then set its properties after checking to make sure the original baseplate existed.

--Psudar
--June 4 2019

--Server script, place this anywhere server scripts can run

Baseplate = workspace:FindFirstChild("BasePlate")
if Baseplate then
    local newBaseplate = Baseplate:Clone()
    newBaseplate.Position = Vector3.new(x, y, z) --Position here 
    newBaseplate.Parent = workspace --Set the parent
end