Can tile be laid on top of plywood?

Yes, tile can be laid on top of plywood, but it's important to ensure the plywood is properly prepared. It should be at least 3/4 inch thick and installed with a subfloor for stability. Additionally, using a cement backer board or an appropriate tile underlayment over the plywood is recommended to prevent moisture issues and provide a suitable surface for the tile adhesive. Proper installation techniques will help ensure a durable and long-lasting tile surface.