Can anyone help me identify this plant?

Crassula arborea, Jade Plant? or Money tree.

Kalanchoe. They flower in winter and like lots of food in summer and indirect light and humidity. You can cut them back after flowering and they will thicken up again from the middle of the plant. There are several flower colours.

Are the edges of the leaves smooth or are they serrated, like a carving knife? If serrated then agree with Argerfenhouse. My first answer would be wrong then.

Yes, the leaves are serrated. That's a real help.

Thanks very much!