Final answer:
The resistance of a piece of copper wire cannot be calculated without knowing the cross-sectional area of the wire.
Step-by-step explanation:
The resistance of a piece of copper wire can be found using the formula:
R = ρ * (L/A)
where R is resistance, ρ is resistivity, L is length, and A is the cross-sectional area of the wire.
Since the cross-sectional area is not given, we cannot calculate the resistance without additional information.