\(n_{CuO}=\dfrac{36}{80}=0,45\left(mol\right)\\ PTHH:CuO+H_2\underrightarrow{t^o}Cu+H_2O\\ Theo.pt:n_{H_2}=n_{Cu}=n_{H_2O}=n_{Cu}=0,45\left(mol\right)\\ \rightarrow\left\{{}\begin{matrix}m_{Cu}=0,45.64=28,8\left(g\right)\\m_{H_2O}=0,45.18=8,1\left(g\right)\\V_{H_2}=0,45.22,4=10,08\left(l\right)\end{matrix}\right.\)