Cu metal crystallises in face centered cubic lattice with cell edge , a = 361.6 pm . What is the density of Cu crystal ? (Atomic mass of copper = 63.5 amu , $N_A = 6.023\times10^{23}$

Question

$(a)\;89.4g\;cm^{-3}\qquad(b)\;8.94g\;cm^{-3}\qquad(c)\;894g\;cm^{-3}\qquad(d)\;0.894g\;cm^{-3}$