A copper wire with cross-sectional area $2.0\,\text{mm}^2$ carries a current of $10\,\text{A}$. How many electrons pass across a particular cross-section of the wire in one second?
- A$1.0 \times 10^1$
- B$5.0 \times 10^6$
- C$6.3 \times 10^{19}$
- D$3.1 \times 10^{25}$