a very thin layer of gold plating was placed on a metal tray that measures 25.22 cm by 13.22cm. The gold plating increased the mass of the plate by 0.0512 g. Calculate the thickness of the plating. The density of gold is 19.31 g/cm ^3

Question

anonymous · Answer

Volume of gold can be found by
Volume = mass / density
$$V = \frac{ 0.0512 g }{ 19.31 g cm^{-3} }$$
Volume of gold is given by
Volume = Length x Width x Thickness
V = 25.22 x 13.22 x T
Now, you can solve for T