How to stop item giver from giving player item without a wait?

So i found a script in where when a player touches a certain block, they get an item from the replicated storage. But when the player touches the block the block will keep on giving the player the item without a wait. What I want is the script to give the player the item but then to have a small wait (3 sec) so that when the player touches the brick it doesnt give the player like 5 swords, or 6 bow and arrows.

script.Parent.Touched:connect(onTouch)

function getPlayer(humanoid) 
local players = game.Players:children() 
for i = 1, #players do 
if players[i].Character.Humanoid == humanoid and players[i].Backpack:FindFirstChild("GhostBurger") == nil then return players[i] end
end 
return nil 
end 

function onTouch(part) 

local human = part.Parent:findFirstChild("Humanoid") 
if (human == nil) then return end 

local player = getPlayer(human) 

if (player == nil) then return end 

game.ReplicatedStorage:findFirstChild("Bow and Arrow"):clone().Parent = player.Backpack 

wait(10)

end 
script.Parent.Touched:connect(onTouch)

i need help a

This isn't exactly what you're wanting but... if you put this within a script in a 'block'; This will allow players to get whatever item it is. Only if they don't already have it. So they can ONLY GET THE ITEM ONE TIME!

local part = script.Parent
local tool = game:GetService('ReplicatedStorage'):FindFirstChild('ITEMNAMEHERE')

if tool then
	part.Touched:Connect(function(hit)
		if hit and hit.Parent then
			local humanoid = hit.Parent:FindFirstChild('Humanoid')
			if humanoid then
				local player = game.Players:GetPlayerFromCharacter(humanoid.Parent)
				if player then
					if not player.Backpack:FindFirstChild(tool.Name) and not humanoid.Parent:FindFirstChild(tool.Name) then
						tool:Clone().Parent = humanoid.Parent
					end
				end
			end
		end
	end)
end