Hi hineahua,
I was brought up in Portobello for 20 years I lived just along the road at a place called Joppa, I remember my mum shopping in Copeland's on her way home regularly, she thought the product was second to none.
Portobello was a lovely little seaside town but it has changed a good bit not like when I lived there, the shops are a disgrace to what they were originally. The shop Copeland owned is the white one, in the days when the family owned it the shop front was just stone colour.
I have attached two photos, one where the shop was and the other where they lived, the house they lived in is on top of the shops to the left of the photo looking at it with the pink blinds.
It should be noted that Portobello is not in Leith or attached to it, Portobello joined Edinburgh in the 1800's and the town was started around 1747.
Cheers.
Archie.