The density of copper is 8.94g /ml. The no. of coulomb needed to place an area of  $10\times 10{\text{\hspace{0.17em}cm}}^2$ to a thickness of  ${10}^{-2}\text{cm}$using ${\text{CuSO}}_4$solution electrolyte

$\text{d}=8.94\text{\hspace{0.17em}g/mL}$

$\text{Area}=10\times 10{\text{\hspace{0.17em}cm}}^{-2}$

$\text{Thickness}={10}^{-2}\text{cm}$

$\text{Volume}=\text{Area}\times \text{Thickness}$

$=10\times 10\times {10}^{-2}=1{\text{\hspace{0.17em}cm}}^3$

$\text{Mass}=\text{d}\times \text{v}=8.94\times 1=8.94\text{\hspace{0.17em}g}$

$63.5\text{g\hspace{0.17em}cu}\_\_\_\_\_2\times 96500\text{\hspace{0.17em}C}$

$8.94\text{g\hspace{0.17em}cu}\_\_\_\_\_x$

$x=\frac{2\times 96500\times 8.94}{63.5}$

$x=27129.2\text{\hspace{0.17em}coulomb}$.