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## Homework Statement

Gold, which has a density of 19.32 g/cm^3, is the most ductile metal and can be pressed into a thin leaf or drawn out into a long fiber. (a) If a sample of gold, witha mass of 27.63g, is pressed into a leaf 1.000 µm thickness, what is the area of the leaf? (b) If, instead, the gold is drawn out into a cylindrical fiber of radius 2.500 µm, what is the length of the fiber?

## Homework Equations

ρ=m/V and others?

## The Attempt at a Solution

Not sure what to do. Got volume but how do i use that to get area? I also do not know what equations would apply to a gold leaf.