Equivalent weight of Cu in $\text{CuC}{l}_2$ is

In $\text{CuC}{l}_2,\text{Cu}$  valency is 2 and its atomic mass is 63.5

$=\frac{63.5}{2}-31.75$

$\therefore$  Equivalent weight of Cu in $\text{CuC}{l}_2$  is 31.75.