Plural of Office

The syllable division of the singular form of the world OFFICE is like this [of-is]. How would the plural form be divided?

OFFICES [of-i-s..z] or [of-is-ez]

It's not in the dictionary so I decided to ask here.

Anyone please? I didn't think this was that hard a question. How long would it take to answer this?

I pronounce Offices as of-is-iz. I'm not sure which of the pronounciations this is above... or even if it is one.

[a:f-is-iz]. i.e. ''ahf-is-iz''

Thank you. :-)