An irregular metallic solid has a mass of 35 g if its length...

An irregular metallic solid has a mass of 35 g. If its length is 10 cm, its width 8 cm, and its thickness 5 cm, what is the mass density of the metal? 5. A thin sheet of gold foil has an area of 3.05 cm2 and a mass of 6.3 mg. How thick is the foil? The mass density of gold is 19,300 kg/m3.

Refer to the table. $$\begin{array}{|l|l|l|l|} \hline \text { Metal } & \text { Density } & \text { Metal } & \text { Density } \\\hline \text { Aluminum } & 2.81 \mathrm{g} / \mathrm{cm}^{3} & \text { Nickel } & 8.89 \mathrm{g} / \mathrm{cm}^{3} \\\hline \text { Copper } & 8.97 \mathrm{g} / \mathrm{cm}^{3} & \text { Platinum } & 21.40 \mathrm{g} / \mathrm{cm}^{3} \\\hline \text { Gold } & 19.30 \mathrm{g} / \mathrm{cm}^{3} & \text { Potassium } & 0.86 \mathrm{g} / \mathrm{cm}^{3} \\\hline \text { Lead } & 11.30 \mathrm{g} / \mathrm{cm}^{3} & \text { Silver } & 10.50 \mathrm{g} / \mathrm{cm}^{3} \\\hline \text { Lithium } & 0.54 \mathrm{g} / \mathrm{cm}^{3} & \text { Sodium } & 0.97 \mathrm{g} / \mathrm{cm}^{3} \\\hline\end{array}$$ What is the mass of a solid block of aluminum if its dimensions are $4 \mathrm{cm}$ by $8 \mathrm{cm}$ by $20 \mathrm{cm} ?$