Yes, WAFERS is a Scrabble word!

Letter values in Scrabble US: W 4, A 1, F 4, E 1, R 1, S 1.

Is it a valid word?

WAFERS is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

a small adhesive disk of paste; used to seal letters
a small thin crisp cake or cookie
thin disk of unleavened bread used in a religious service (especially in the celebration of the Eucharist)