A Cu²⁺/Cu || Zn²⁺/Zn galvanic cell is operated at 310 K. The standard cell potential at 298 K for this system is 1.10 V. Under the conditions [Cu²⁺] = 0.010 M and Ecell = 1.08 V, what is the concentration of Zn²⁺ in the Zn²⁺/Zn half-cell?
a) 4.5×10−2M
b) 2.1×10−2M
c) 4.5×10−4M
d) 3.2×10−1M