Answer:
Atomic name is your answer.
Answer:
0.2129 mm
Explanation:
We have given volume of the paint = 1 gallon
Area that covers the paint 
We have to find the thickness of the fresh paint
So
So the thickness of fresh paint on the wall is 0.2129 mm
Are there any options??
I would have to say metal of course but without options I can't assume anything