A sheet of copper is 18.0 in x 7.00 in and a mass of 0.0318 g. Given that the density of copper is 8.96 g/cm3. What is the thickness of the copper sheet?
a. 282 nm
b. 4.4 x 10-6 nm
c. 0.044 nm
d. 43.7 nm
e. 3.51 x 103 nm
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