Trivet or some sort of hot plate stand (Monks Hill CR2)

I kept meaning to repaint the top surface and use it to display for some decorative items, but I haven’t got round to that yet. Can you use it? It measures 14.5 inches diameter. The top is metallic but worn or tarnished, but should be protective. It’s on small raised feet. Please let me know when you could collect from Monks Hill. (Not late evening.) Thanks.