UK Help for large Tiles . .

[DIYpete]

I have a large heavy Porcelain 1200 x 600mm Tile I want to use as a sink splashback.
I've sanded the emulsion paint off to reveal the old bare plaster. I have got 'ultra trade primer' to prep the plaster.
What adhesive should I use ?
Will the plaster take the weight ?

Many thanks in advance,
Pete