The density of paper is $800\,\text{kg m}^{-3}$. A standard sheet of paper measures $210\,\text{mm}$ in width and $300\,\text{mm}$ in length. A stack of $500$ sheets of paper is $50\,\text{mm}$ thick. What is the mass of one sheet of paper?
- A$0.5\,\text{g}$
- B$5\,\text{g}$
- C$50\,\text{g}$
- D$500\,\text{g}$