Mozambique dwarfs South America: about 790,643 km² km² against 17,840,000 km² km². At true size Mozambique is about 22.6× larger — the whole of South America fits into Mozambique roughly 22 times.
The old Mercator map treated both about equally (1.1× vs 1× inflation), so at least their relative sizes were preserved — even if both were drawn at the wrong absolute scale.
Mozambique fits 22× into South America.