EEA you have to follow rules but get no say in said rules.
To "join" the EEA both sides/parties of it has to agree, so yes, members do have a say, it's beneficial (and should be) to both parties of the agreements.
Will Canada have to follow the rules? Will Canada have a say in the rules?
Follow, yes. Say, very little.
Reductive to the point of untruth
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For one this seems related to EU the umbrella organization, not Europe the continent, while I suppose the European Economic Area might be geographically limited to Europe the continent. Maybe something like the European Neighbourhood Policy (ENP) might be more applicative here.
Jurisdiction of ECJ and boring normative stuff like languages on packing.