JEE Main 2022 · 30 Jun · Shift 1, Chemistry question 81

Blister copper is produced by reaction of copper oxide with copper sulphide.

$$\mathrm{2Cu_2O+Cu_2S\rightarrow6Cu+SO_2}$$

When $2.86\times10^3$ g of $\mathrm{Cu_2O}$ and $4.77\times10^3$ g of $\mathrm{Cu_2S}$ are used for reaction, the mass of copper produced is ______ g. (nearest integer)

(Atomic mass of Cu = 63.5 a.m.u, S = 32.0 a.m.u, O = 16.0 a.m.u)