Nigeria dominated the first half, racing to a commanding 3-0 lead thanks to clinical finishes from Osinachi Ohale, Esther Okoronkwo and Chinwendu Ihezuo.
Despite the Copper Queens’ attempts to find rhythm and fight back in the second half, their hopes were dealt a further blow when Oluwatosin Demehin calmly added a fourth goal, sealing Nigeria’s control of the match.
The Super Falcons went on to secure their spot in Tuesday's semi-final clash when Folashade Ijamilusi added their fifth goal.