\(n_{H_2SO_4}=0,02.1=0,02mol\\ Cu+2H_2SO_4\rightarrow CuSO_4+SO_2+2H_2O\\ CuO+H_2SO_4\rightarrow CuSO_4+H_2O\\ \Rightarrow\left\{{}\begin{matrix}80n_{CuO}+64n_{Cu}=0,8\\n_{CuO}+2n_{Cu}=0,02\end{matrix}\right.\\ \Rightarrow n_{CuO}=n_{CuSO_4\left(1\right)}=\dfrac{1}{300}mol\\ n_{Cu}=n_{CuSO_4\left(2\right)}=\dfrac{1}{120}mol\\ m=m_{CuSO_4}=\left(\dfrac{1}{300}+\dfrac{1}{120}\right)\cdot160=1,86g\)